wrap up 托福

They wrapped up an agreement on Friday.

他们于周五签。

Make sure you wrap up in the cold wind.

风中, 你一定要穿暖。

He's wrapped up in this book.

他被这本书全吸引住了。

He wrapped up the parcel.

他包裹包好。

They wrapped the child up.

他们裹好。

Objective To observe the effect and clinical application ofdifferent biomembrane used to wrap up the sutured nerves to promote neuranagenesis of the wounded and repaired nerves.

目的观察神经离断修复后，不同生物膜性材料包裹神经缝合处，促进神经再生的效果和临床应用。